Text.Chatty.Finalizer

Provides handle-closing.

Documentation

class Monad m => MonadFinalizer m where

Class for all handle-finalizing monads. Required for file redirections.

Methods

mqfh :: Handle -> m ()

Enqueue handle

mqfhs :: [Handle] -> m ()

Enqueue list of handles

mfin :: m ()

Finalize all queued handles

Instances

MonadIO m => MonadFinalizer (HandleCloserT m)

MonadFinalizer m => MonadFinalizer (InRedirT m)

MonadFinalizer m => MonadFinalizer (HereStringT m)

MonadFinalizer m0 => MonadFinalizer (RecorderT m0)

MonadFinalizer m0 => MonadFinalizer (OutRedirT m0)

MonadFinalizer m0 => MonadFinalizer (DeafT m0)

MonadFinalizer m0 => MonadFinalizer (SpawnOverlayT m0)

MonadFinalizer m0 => MonadFinalizer (HtmlPrinterT m0)

MonadFinalizer m0 => MonadFinalizer (AnsiPrinterT m0)

MonadFinalizer m0 => MonadFinalizer (NullExpanderT m0)

MonadFinalizer m0 => MonadFinalizer (ExpanderT m0)

MonadFinalizer m0 => MonadFinalizer (HistoryT m0)

newtype HandleCloserT m a

Handle-closing transformer

Constructors

HandleCloser

Fields

runHandleCloserT :: [Handle] -> m (a, [Handle])

Instances

MonadTrans HandleCloserT

Monad m => Monad (HandleCloserT m)

Monad m => Functor (HandleCloserT m)

MonadIO m => MonadIO (HandleCloserT m)

MonadRandom m0 => MonadRandom (HandleCloserT m0)

MonadClock m0 => MonadClock (HandleCloserT m0)

MonadIO m => MonadFinalizer (HandleCloserT m)

MonadScanner m0 => MonadScanner (HandleCloserT m0)

MonadPrinter m0 => MonadPrinter (HandleCloserT m0)

MonadSpawn m0 => MonadSpawn (HandleCloserT m0)

ExtendedPrinter m0 => ExtendedPrinter (HandleCloserT m0)

MonadExpand m0 => MonadExpand (HandleCloserT m0)

ExpanderEnv m0 => ExpanderEnv (HandleCloserT m0)

HistoryEnv m0 => HistoryEnv (HandleCloserT m0)

withLazyIO :: (MonadIO m, Functor m) => HandleCloserT m a -> m a

Run function with handle closer